When a neuron receives signals from other neurons, it generates an electrical charge that travels down the length of its axon and releases neurotransmitter chemicals across a tiny gap, called a synapse.

Neurons are constantly in touch with neighboring brain cells. The function and survival of neurons depend on several key biological processes: The axon is a cable-like structure at the end of the cell body opposite the dendrites and transmits messages to other neurons.Dendrites are branch-like structures that extend from the cell body and collect information from other neurons.The cell body contains the nucleus, which houses the genetic blueprint that directs and regulates the cell’s activities.Most neurons have three basic parts: a cell body, multiple dendrites, and an axon. Alzheimer’s disease disrupts this communication among neurons, resulting in loss of function and cell death. They send messages between different parts of the brain, and from the brain to the muscles and organs of the body. If you or someone with you is experiencing these or other stroke symptoms, urgent medical evaluation and treatment are needed. Check the time so you'll know when the first symptoms appeared.The healthy human brain contains tens of billions of neurons-specialized cells that process and transmit information via electrical and chemical signals. Remember 'F.A.S.T.' to know when to call for help: Most of these later health problems happen within just days or weeks of the TIA, so early interventions to reduce risk are vital. TIAs, which occur before about 15% of strokes, are considered 'warning strokes' - they are associated with additional TIAs, full-blown strokes or other cardiovascular problems later. Because most TIA symptoms last from only a few minutes up to 24 hours, they are often dismissed and not taken seriously. TIA is a medical emergency with the same symptoms as ischemic and hemorrhagic strokes. A transient ischemic attack (TIA) is a warning stroke, but is commonly referred to by the public as a mini-stroke.

Brain free icon